The WBCGV12-1840-1850-1910-1920-40-3 from Wainwright Instruments is a Band Pass Filter with Frequency 1.85 to 1.91 GHz, Bandwidth 60 MHz, Center Frequency 1.88 GHz, Insertion Loss 1.5 to 2.5 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCGV12-1840-1850-1910-1920-40-3 can be seen below.